and frightening. That infection with what are called flesh-eating bacteria. She is now in rehab, and abc's steve osunsami takes us to meet her. Reporter: This is exclusive new video of a champion spirit. 24-year-old aimee copeland. She fought and won against that rare and deadly bacterial infection that stole her limbs but not her life. Let's jump on the mat and get started with the exercises. Reporter: Next month, she explains its all to katie couric in her first ever interview. Before her accident, she was a graduate student, studying psychology. BUT ON MAY 1st, SHE FELL INTO A River from a zip line and bacteria from the water settled in a deep wound. Medium concentrations -- right. Reporter: Dr. Bruce ribner is a specialist and says the various bacteria that cause flesh-eating infections are found in the air and in every stream and river. If you have gone swimming you've been exposed to that bacteria. Reporter: For most people it's harmless. But each year there are nearly 15,000 cases of flesh-eating infections. Patients lose limbs and nearly 3,000 people die. Immediate intervention means the difference between life and death. Aimee copeland went through 11 surgeries. And this week came home to her family. She still has to fine tune fitting of her prosthetics, which is still painfully arduous as far as getting that done. Reporter: Her neighbors and local business built her this wheelchair-friendly addition. And since she loves nature they built her a waterfall too. She now plans to start driving with specially designed controls. Just one of the strongest young women you'll ever meet. Steve osunsami, abc news, atlanta.

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